Shoe upper



FIG. 1 is a perspective view of a shoe upper embodying my new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevation view thereof; and,

FIG. 6 is a front elevation view thereof.

Broken lines showing the remainder of the shoe in the figures are for illustrative purposes only and form no part of the claimed invention. 

The ornamental design for a shoe upper, as shown and described. 